Sixth, seventh and eighth year students' knowledge levels about greenhouse effect, ozone layer and acid rain

The aim of this study is to investigate second stage primary school (6th, 7th and 8th year) students’ knowledge levels about three important environmental topics, namely, the greenhouse effect, the ozone layer and acid rain. The study was carried out with 204 6th, 7th and 8th year students (11-14 year olds) in Turkey. A 25- item scale developed by Khalid (1999) was used as a data collection instrument. The instrument was adapted to the Turkish language and culture, was validated and its reliability co-efficiency was determined. The results of the study showed that 6th, 7th and 8th year students have a very low level of knowledge about the greenhouse effect, the ozone layer and acid rain. The results of this study can be used by experts of environmental education to focus on starting the teaching of environmental topics – like greenhouse effect, ozone layer and acid rain – thoroughly from the primary school to develop more environmentally sensitive citizens.peer-reviewe